The CAT871 from ON Semiconductor is a highly reliable voltage supervisor integrated circuit (IC) designed to keep microprocessor systems safe during power failures. This compact, precision device is essential for applications that require accurate monitoring of their power supply voltages to ensure proper system operation and to prevent data corruption.

Key Features

• Voltage Monitoring: The CAT871 provides precise monitoring of 3V, 3.3V, and 5V supply voltages, making it versatile for a range of applications.
• Reset Output: It features an active-low reset output, which holds the microprocessor in a reset state until the system voltage has stabilized at the correct level for a reliable system startup.
• Low Power Consumption: Designed with power efficiency in mind, the CAT871 consumes very low power, making it ideal for portable and battery-powered applications.
• Manual Reset: A manual reset input is provided, allowing the user to initiate a system reset with an external push-button or logic signal.
• Debounce Timer: The integrated debounce timer ensures that the reset output will remain in the active state for a preset minimum period after the supply voltage has risen above the reset threshold, providing stability.
• Watchdog Timer: An optional watchdog timer function monitors the microprocessor activity and can initiate a system reset if the processor fails to strobe within a preset timeout period.

Applications

The CAT871 is suitable for a wide range of applications including:

• Computers and computer peripherals
• Embedded systems
• Portable and battery-powered equipment
• Industrial controllers
• Automotive systems

Package and Availability

The CAT871 is available in a small outline SOT-23 package, which is ideal for space-constrained applications. It is also offered in a standard 8-pin SOIC package for broader compatibility with various PCB layouts. This voltage supervisor by ON Semiconductor is widely available through major electronic component distributors, ensuring ease of procurement for product development and mass production.

With its robust feature set and ON Semiconductor's commitment to quality, the CAT871 Voltage Supervisor IC is a trustworthy and efficient solution for safeguarding your electronic systems against power instabilities.